Since you have a New 2008 bike there is a hidden compartment under the gas tank that has the above required Official HD Gas Cap Opener (OHDGCO Part # 08-0ICU812) in it. You may have to get down on the ground to access it. Let us know if you find the OHDGCO get the cap off.

Your gas cap is loctited on from the factory....I use a bernzomatic torch to get mine off....but you have to be careful. I uploaded a picture from the 2008 service manual so yours should be the same.....

Ok, new 2008 Road King owner here. I went to fill up my bike for the first time and can not figure out how to get the gas cap off. I have a standard tank with the gas gauge on the left and another cap on the right which I assume is the gas cap. I know not to take the left gas gauge off becuase of the wiring but I can not seem to get the right side cap off. I am still waiting on my owner's manuel and I am too far from my dealership to get immeidate help. Can anyone tell me how to get the cap off or what is the correct way to do it?

***very important***
immediatly take the bike back to the dealership because
DUMBA$$ES SHOULDN'T BE RIDING BIKES IN THE FIRST PLACE